Airtac MI16-20 Stainless Steel Mini Cylinder MI20X28SU
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X28SU is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 28mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments. Its ISO 6432 mounting interface makes it a compact drop-in for standard mini-cylinder fixtures.
- BoreØ20 mm
- Stroke28 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X28SU
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder is built for compact automation. The Ø20 mm bore uses a 1/8 inch port and an M8x1.25 male rod thread. Its riveted stainless barrel and rod resist mild corrosion, giving it a real edge over painted alternatives in damp or washdown environments. The 28 mm stroke is governed by fixed TPU bumper pads that decelerate the impact at stroke end.
Equipped with a piston magnet, this unit supports CMSG, DMSG and EMSG sensors for position detection. For real work at 0.5 MPa, plan for about 94 N of usable load rather than the absolute maximum. In vertical lifting tasks, this translates to safely raising an 8 kg part with a 2:1 safety margin. The rear U cover provides a 90-degree mounting orientation, and the body conforms to ISO 6432 mounting dimensions for easy bracket integration.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X28SU Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X28SU |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 28 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Fixed TPU bumper pads |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MI/MIC (ISO 6432) datasheet. Barrel & rod: stainless steel (round-body, riveted construction). Thread options: PT (blank) / G.
Theoretical Output Force (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | 185 N |
| Max (@1.0 MPa) | 32 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MI16-20 Stainless Steel Mini Cylinder MI20X28SU
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×28 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
MI-family variants: MI / MIC (double acting ±cushion), MSI / MTI (single acting push / pull), MID / MICD (double rod ±cushion), MIJ / MICJ (adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Where the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X28SU Is Used
Diverter Gate Actuation
Snaps a sorting flap 28 mm on a packaging line, using the 157 N push force to deflect light cardboard cartons reliably.
Belt Tensioner Arm
Maintains positive pressure on a conveyor belt tensioner, leveraging the 8 kg vertical lift capacity to compensate for belt stretch.
Parts Ejector Pusher
Ejects small machined aluminium parts from a fixture, relying on the stainless build to resist coolant mist and the U cover for a compact 90-degree mount.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X28SU the Right Cylinder?
When sizing this unit, compare it against its neighbours: a Ø16 bore provides 100.5 N of push at 0.5 MPa, while stepping up to a Ø25 bore yields 245.3 N. This model includes the -S magnet for electronic or reed switches, and the U back cover suits tight 90-degree pivot layouts. If your application requires adjustable end-cushioning for high-speed cycles, consider the MIC variant instead of the base MI series.
Remember that a standard cylinder drifts when air is lost or the valve is centered; the TPU bumpers only soften the stroke end and do not function as a brake. To suspend a load safely, install an external rod lock or a pilot-operated check valve. The short 28 mm stroke keeps rod bending stress minimal even under lateral loads.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G)
- ✓ Magnet (-S) for sensors?
- ✓ Back cover (CA/U/R/CM) & mount (LB/FA/SDB/TC)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check Use correct back cover (CA/U/R/CM) & mount (LB/FA/SDB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X28SU FAQ
At 0.5 MPa it provides 157 N push and 131.9 N pull. At 0.7 MPa it provides 219.8 N push and 184.7 N pull. The theoretical maximum force is 32 kgf at 1.0 MPa. The air port size is 1/8 inch.
No, the piston will drift if air is lost or the valve is centered. The fixed TPU bumper pads only decelerate the stroke end and act as a brake. To hold a vertical load securely, you must use an external rod lock or a pilot-operated check valve.
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1-Year Warranty
Covers non-human-caused product damage.
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